Adding a Vent or Duct Run to a Room — Repair Cost in France (2026)
France national estimate: €220–€1,050 for a ductwork & vents — adding a vent or duct run to a room — built from French sources, never converted from another country's prices. Pick your quality tier and enter a postal code to localize. Reviewed July 2026.
Also searched as: “cost to add a vent and duct run”, “add air vent to room cost”, “new duct run installation price”.
€220–€1,050 France national estimate for a ductwork & vents — adding a vent or duct run to a room. Localize below.
| Most common repair | Typical total (EUR) | DIY? |
|---|---|---|
| Adding an extract terminal and its duct branch to an existing ventilation network | €220–€600 | Pro recommended |
| Adding a supply terminal to a ducted air conditioning system (cutting the suspended ceiling, spigot, damper) | €400–€1,050 | Pro recommended |
Plus a typical service-call / diagnostic fee of €80–€170, often credited toward the repair.
Pick a quality tier for a class-typical estimate, or a specific French brand to override it (both adjust the parts portion only, never labour). Enter a French postal code to localize to your region's labour costs. All figures stay in euros, never converted from another country's prices. Everything updates without a page reload.
Base: published rates from 3 French heating & cooling companies (2026-07) · France national base range (Insee Tous salariés 2023) · Reviewed July 2026 · Estimated
How do brand and quality tier change the repair cost?
Brand and tier adjust the parts portion only — never labour. Value-tier brands — Ariston, Chaffoteaux and Auer — carry some of the lowest parts factors; Saunier Duval, ELM Leblanc, De Dietrich, Chappée, Atlantic, Thermor and Riello form the mainstream core of the French heating market, with Saunier Duval as the price anchor for this list; premium makers — Vaillant, Frisquet and Viessmann — source mainly through the manufacturer's own network (pièces d'origine). On the heat-pump and split-system side, Daikin, Mitsubishi Electric and Toshiba sit in the premium tier, Panasonic, LG and Atlantic in the mainstream core, and Airwell at the value end. Pick a tier for a class-typical estimate, or a specific French brand to override it.
| Brand | Parts factor | Basis |
|---|---|---|
| Basic tier parts ×0.925 | ||
| Chaffoteaux | ×1 | Baseline — no parts adjustment |
| Ariston | ×1 | Baseline — no parts adjustment |
| Auer | ×0.85 | Parts ×0.85 (published rates from 2 local repair companies) |
| Airwell | ×0.85 | Parts ×0.85 (published rates from 3 local repair companies) |
| Mid-range tier parts ×1.1 | ||
| Saunier Duval | ×1 | Baseline — no parts adjustment |
| ELM Leblanc (Bosch) | ×1.5 | Parts ×1.5 (published rates from 2 local repair companies) |
| De Dietrich | ×1.3 | Parts ×1.3 (published rates from 5 local repair companies) |
| Chappée | ×1.5 | Parts ×1.5 (published rates from 3 local repair companies) |
| Atlantic | ×0.9 | Parts ×0.9 (published rates from 3 local repair companies) |
| Thermor | ×1.15 | Parts ×1.15 (published rates from 2 local repair companies) |
| Riello | ×0.9 | Parts ×0.9 (published rates from 2 local repair companies) |
| Cuenod | ×1.1 | Parts ×1.1 (published rates from 2 local repair companies) |
| Panasonic | ×0.85 | Parts ×0.85 (published rates from 3 local repair companies) |
| Premium tier parts ×1.15 | ||
| Frisquet | ×1.05 | Parts ×1.05 (published rates from 2 local repair companies) |
| Vaillant | ×1.15 | Parts ×1.15 (published rates from 3 local repair companies) |
| Viessmann | ×1.1 | Parts ×1.1 (published rates from 2 local repair companies) |
| Daikin | ×1.35 | Parts ×1.35 (published rates from 2 local repair companies) |
| Mitsubishi Electric | ×1.6 | Parts ×1.6 (published rates from 2 local repair companies) |
Base: French brand parts factors from French parts retailers and repair guides; tier factor = median of the tier's French brands · Applied to the parts portion only · Reviewed July 2026 · Estimated
Ductwork & Vents adding a vent or duct run to a room: what usually causes it? Estimated
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Adding an extract terminal and its duct branch to an existing ventilation network
Pro recommended€220–€600
A classic request after creating a shower room, a store room or a laundry room in a house that is already ventilated. The job combines the drilling, running a few metres of duct from the unit, an additional spigot and the terminal itself, billed at €60 to €220 including VAT fitted by the listed tradespeople. The spread comes from the distance to the unit and the accessibility of the loft. The whole network then has to be rebalanced, otherwise the new terminal takes the airflow away from the other rooms, which justifies a professional's involvement.
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Adding a supply terminal to a ducted air conditioning system (cutting the suspended ceiling, spigot, damper)
Pro recommended€400–€1,050
This service only makes sense on the ducted installed base, a minority in France but growing with reversible air conditioning: the amounts therefore come from that market, for want of a ducted warm-air heating network to extend. Installers allow about €1,000 for the insulated ducts and terminals of a house as a whole, €40 to €70 per m² excluding VAT for making good the suspended ceiling, that is €44 to €77 per m² including VAT at the 10% rate that applies to improvement work in a dwelling completed more than two years ago, and €50 to €85 an hour of labour, that is €55 to €93.50 an hour including VAT. The totals shown here are expressed including VAT. Adding a branch makes it necessary to recheck the sizing of the indoor unit, on pain of unbalancing all the existing rooms.
Base: published rates from 3 French heating & cooling companies (2026-07) · France national base range (Insee Tous salariés 2023) · Reviewed July 2026 · Estimated
How much is a service-call fee for ductwork & vents repair?
Most French companies charge a call-out / diagnostic fee of €80–€170, often credited toward the repair if you go ahead. It is separate from the repair totals above. VAT on French home heating and cooling work is usually the 10% reduced rate for repair and maintenance in a dwelling completed more than two years ago, not the 20% standard rate; some energy-performance improvement work can fall to 5.5%, depending on the equipment fitted and the rules in force. Many independent installers and micro-entrepreneurs also fall under France's small-business VAT exemption (franchise en base de TVA, €37,500 threshold for services) and charge no VAT at all — their invoices carry the note "TVA non applicable, art. 293 B du CGI". Prices displayed to consumers in France are quoted TTC (toutes taxes comprises — all taxes included).
Is it worth repairing a ductwork & vents, or should you replace it?
A common rule of thumb: if the repair cost exceeds roughly half the price of a comparable new unit — or the appliance is past ~8 years for a ductwork & vents — replacement is often the better value. The calculator's localized totals give you the number to weigh against a new-unit quote.
Prices are region-level estimates based on regional wage data (Insee, Tous salariés 2023 all-employees base), not fake city precision. Shopping in the U.S.? See the U.S. version (USD). In Canada? See the Canadian version (CAD). See the methodology for the localization method and named sources, or return to the France HVAC repair guide.
Reviewed by a Red Seal–certified appliance technician who also holds a Technical Safety BC gas ticket (Gas-C) and an ODS/halocarbon refrigerant ticket (CFC/HCFC/HFC).